Shizuka, a new wife, and Nanako, a sister-in-law, had a close relationship that could not be told to their husbands. And suddenly, Shizuka's husband evaporates. He had promised to pay off her debt by selling a little of her body to her collector. Nanako volunteers to become a slave to help Shizuka who is falling into her hell. And the two of them were tossed about by a swirl of dizzying pleasure, and transformed into a beast-like figure...
